Vintage Und. Lab. Inc. List. Federal Signal SW4 - (Red)
Momentary switch
New old stock
This is a heavy duty, well made switch for use in a variety of applications including the emergency vehicle market.
This switch was made by Und. Lab Inc for Federal Signal.
UND. LAB INC.  TOGGLE 10A/250AC 15A/125VAC 3/4HP/250VAC